Yes, probably PLM... but I believe you have Event Viewer open to Level 1? You need to open it up to Level 3. Just click the drop down menu and select.
Here's what a level 3 trace looks like for 2477d
Wed 03/16/2016 07:54:11 PM : [iNST-TX-I1 ] 02 62 38 03 52 0F 11 FF Wed 03/16/2016 07:54:11 PM : [iNST-ACK ] 02 62 38.03.52 0F 11 FF 06 LTONRR (FF) Wed 03/16/2016 07:54:11 PM : [iNST-SRX ] 02 50 38.03.52 30.6C.FB 2F 11 FF LTONRR (FF) Wed 03/16/2016 07:54:11 PM : [std-Direct Ack] 38.03.52-->ISY/PLM Group=0, Max Hops=3, Hops Left=3 Wed 03/16/2016 07:54:15 PM : [iNST-TX-I1 ] 02 62 38 03 52 0F 13 00 Wed 03/16/2016 07:54:15 PM : [iNST-ACK ] 02 62 38.03.52 0F 13 00 06 LTOFFRR(00) Wed 03/16/2016 07:54:15 PM : [iNST-SRX ] 02 50 38.03.52 30.6C.FB 2F 13 00 LTOFFRR(00) Wed 03/16/2016 07:54:15 PM : [std-Direct Ack] 38.03.52-->ISY/PLM Group=0, Max Hops=3, Hops Left=3 Wed 03/16/2016 07:54:15 PM : [D2D EVENT ] Event [38 3 52 1] [sT] [0] uom=100 prec=0 Wed 03/16/2016 07:54:15 PM : [ 38 3 52 1] ST 0 (uom=100 prec=0) Wed 03/16/2016 07:54:15 PM : [D2D-CMP 00BD] STS [38 3 52 1] ST Converted values Event=0 Condition=0 prec=0 Wed 03/16/2016 07:54:15 PM : [D2D-CMP 00BD] STS [38 3 52 1] ST op=6 Event(val=0 uom=100 prec=0) != Condition(val=0 uom=51 prec=0) --> false
Jon...